D3-1,3,5-Trimethylbenzene, 200 µg/ml, Methanol,

EPA Method 353.2 Nitrate + Nitrite

15N2-Chloridazon-desphenyl, 100 µg/ml, Acetonitri

Custom Mix of deuterated PAHs 3, 10ug/mL in toluene 1087.8 Benzo[a]anthracene-d12 1348.20 Benzo[b]fluoranthene-d12 1088.20 Benzo[a]pyrene-d12 1531.22 Indeno[1,2,3-c,d]pyrene-d12